noun🔗ShareSevere overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping."Four years have passed since the meltdown at the Chernobyl nuclear plant, but the grim legacy of the Soviet catastrophe is still unfolding. https//web.archive.org/web/20041130094534/http://www.time.com/time/daily/chernobyl/chernobyl.index.html"energydisastertechnologyscienceenvironmentphysicsindustryChat with AIVocabulary GamePractice Reading
noun🔗ShareA situation being likened to a nuclear meltdown; a crisis."The company experienced a financial meltdown after the scandal was revealed. "disastersituationeventoutcomebusinessChat with AIVocabulary GamePractice Reading
noun🔗ShareA tantrum."The child had a meltdown when he couldn't find his favorite toy. "mindemotionhumanChat with AIVocabulary GamePractice Reading
